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Formation of platinum nanoflowers on 3-aminopropyltriethoxysilane monolayer: Growth mechanism and electrocatalysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
41584 45893 2011 7 PDF Available
Title
Formation of platinum nanoflowers on 3-aminopropyltriethoxysilane monolayer: Growth mechanism and electrocatalysis
Abstract

This work reports the fabrication of hierarchical flowerlike platinum nanostructures (Pt nanoflowers, PtNFs) on a 3-aminopropyltriethoxysilane (APTES) monolayer and their electrocatalytic applications. The obtained PtNFs were characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and electrochemical methods. The growth mechanism of the PtNFs may be attributed to the inhomogeneous diffusion of PtCl62− ions on the surface of the electrode. Moreover, it has been found that the PtNFs modified electrodes exhibit excellent electrocatalytic activity for the oxidation of methanol and the reduction of oxygen when compared to conventional Pt nanoparticle modified electrodes. The increased catalytic activity may be a result of the unique morphology of the PtNFs.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (206 K)Download as PowerPoint slideHighlights► Pt flowerlike nanostructures have been synthesized. ► The growth mechanism of the Pt nanoflowers attributes to the inhomogeneous diffusion of PtCl62− ions. ► The Pt nanoflowers exhibit excellent electrocatalytic activity.

Keywords
Pt nanoflower; Electrodeposition; Methanol; Oxygen; Electrocatalysis
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Formation of platinum nanoflowers on 3-aminopropyltriethoxysilane monolayer: Growth mechanism and electrocatalysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 401, Issues 1–2, 15 July 2011, Pages 226–232
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
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